html{
    height: 100%;
    width: 100%;
}
body{
    margin: 0;
    background-color: purple;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
*{
    box-sizing: border-box;
}
.out-div-class{
    padding-top: 50px;
    width: 98%;
    height: 93%;
    margin: 0 auto;
    margin-top: 40px;
    background-color: aliceblue;
}
.in-div-border{
    width: 70%;
    margin: 0 auto;
    text-align: center;
}
.in-div-line{
    /* border: 1px solid red; */
    background-color: purple;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin: 0 auto;
}
.img-background{
    width: 90%;
    height: 200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
}
.img1{
    width:28%;
    background-image:url("../img/1.jpg");
    background-size: 100% 100%;
}
.img2{
    width:28%;
    background-image:url("../img/2.jpg");
    background-size: 100% 100%;
}
.img3{
    width:28%;
    background-image:url("../img/3.jpg");
    background-size: 100% 100%;
}
.bottom-word{
    font-size: 15px;
    margin-top: 20px;
}
.word1{
    font-size: 40px;
    font-weight: 500;
}
.word2{
    margin-top: 10px;
    font-size: 12px;
    font-weight: 500;
}
.word3{
    margin-top: 10px;
    font-size: 12px;
    font-weight: 500;
}
.word4{
    margin-top: 30px;
    font-size: 25px;
    font-weight: 500;
    margin-bottom: 20px;
}